Medical Weight Loss Pasadena — GLP-1, Tirzepatide & RETA Programs | Lean Lab
Lean Lab — Regenerative Health & Weight Loss

Medical Weight Loss

Lose Weight.
Keep It Off.

Our medically supervised GLP-1 and peptide-based weight loss programs are built around your biology — not a one-size-fits-all diet. Real results, backed by science.

Weight loss transformation at Lean Lab

10–22%

Average body weight reduction

4–8 wks

When most patients notice results

3D Scan

Precision body composition baseline

$250

Consult waived for 3–12 month members

A Program Built Around You

We don't hand you a prescription and send you home. Every Lean Lab weight loss patient receives a fully personalized protocol, ongoing monitoring, and expert support.

01

Comprehensive Labs

We analyze your metabolic panel, hormones, thyroid, and more to understand the root causes of weight gain.

02

3D Body Composition Scan

Precise measurement of fat mass, lean muscle, and visceral fat — giving us a true baseline to track your progress.

03

Personalized Protocol

Your physician selects the right medication, dose, and adjunct therapies based on your unique biology and goals.

04

Ongoing Support

Regular follow-ups, dose adjustments, nutrition guidance, and access to our team throughout your journey.

Membership Packages

Choose Your Membership

Membership packages include 3, 6, and 12 months. Prices listed are cash prices. Card payments may be subject to a processing adjustment of up to 3%. Consultation fee waived with purchase of a 3-, 6-, or 12-month membership package only.

GLP-1/GIPSemaglutide / Tirzepatide Programs

(additional fees apply for dosages over 7.5mg)

Consultation fee waived with purchase of a 3-, 6-, or 12-month membership package only  ·  Medications and therapies offered at Lean Lab have not been evaluated or approved by the FDA  ·  Please note Lean Lab does not offer refunds

Everything Included in Your Program

  • Initial physician consultation ($250, waived for 3–12 month members)
  • Comprehensive metabolic & hormone lab panel
  • 3D body composition scan (InBody or equivalent)
  • Personalized GLP-1 or peptide prescription
  • Custom nutrition guide & meal planning support
  • Regular follow-up appointments & dose adjustments
  • Access to Lean Lab medical team between visits
  • Optional adjunct therapies (B12, MIC injections, NAD+)

Ready to Start Your Weight Loss Journey?

Schedule your $250 consultation — waived when you join a 3-, 6-, or 12-month membership. Our physician will review your labs, scan results, and health history to build your personalized plan.

Book Now

(626) 901-5326

[email protected]

238 S Arroyo Pkwy, Pasadena, CA 91105

Patient Reviews

What Our Patients Are Saying

Real experiences from real patients on our medically supervised weight loss programs.

"I lost 34 lbs in 5 months on the GLP-1 program. The team is incredibly supportive and the whole process felt personalized from day one. I finally feel like myself again."

Amanda L.

GLP-1 Weight Loss · 5 months

"After trying every diet imaginable, Lean Lab's program actually worked. The physician took the time to understand my health history and the results have been life-changing."

Marcus T.

Ultra 12-Month Program

"Down 28 lbs and my energy is through the roof. The staff is warm, professional, and genuinely invested in your success. Highly recommend to anyone serious about weight loss."

Priya S.

6-Month GLP-1 Program

Frequently Asked Questions

Am I a candidate for GLP-1 weight loss therapy?

How much weight can I expect to lose?

Are these medications safe?

What does the program cost?

Do I need to change my diet or exercise?

How long will I be on the medication?

Lean Lab — Regenerative Health & Weight Loss

Regenerative Health & Weight Loss · Pasadena, CA. Specializing in GLP-1 weight loss, peptide therapy, hormone optimization, IV therapy, and advanced skin treatments.

(626) 901-5326[email protected]
238 S Arroyo Pkwy, Suite 140
Pasadena, CA 91105

Hours

Mon – Fri: 9:00 AM – 5:00 PM

Saturday: By appointment

Sunday: Closed

Medications and therapies offered at Lean Lab have not been evaluated or approved by the FDA. Prices listed are cash prices. Card payments may be subject to a processing adjustment of up to 3%. Please note Lean Lab does not offer refunds. Lean Lab P.C. does not accept insurance. All content on this website is for informational purposes only and does not constitute medical advice.

Copyright © 2026 Lean Lab P.C. — All Rights Reserved.

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